GB625141A - Electric timing switches - Google Patents
Electric timing switchesInfo
- Publication number
- GB625141A GB625141A GB3329446A GB3329446A GB625141A GB 625141 A GB625141 A GB 625141A GB 3329446 A GB3329446 A GB 3329446A GB 3329446 A GB3329446 A GB 3329446A GB 625141 A GB625141 A GB 625141A
- Authority
- GB
- United Kingdom
- Prior art keywords
- shaft
- rotatable
- time
- driven
- dials
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C23/00—Clocks with attached or built-in means operating any device at preselected times or after preselected time-intervals
- G04C23/14—Mechanisms continuously running to relate the operation(s) to the time of day
- G04C23/16—Mechanisms continuously running to relate the operation(s) to the time of day acting only at one preselected time or during one adjustable time interval
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Unknown Time Intervals (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
625,141. Time switches. HARDWICK, B. Nov. 8, 1946, No. 33294. [Class 38(v)] A time-switch comprises two conducting drums 17, 18, with insulating segments 19, 20, mounted on a hollow shaft 16, which is driven through two-speed gearing by a synchronous motor 1. Contact-brush-carrying drums 24, 28, attached to calibrated dials 26, 30, which register against a pointer 31 on the shaft 16, are mounted respectively on a shaft 23 rotatable within the hollow shaft 16, and on a bush 27 rotatable on the shaft 16. Thus the dials can be rotated to alter the relative positions of the brushes 25, 29, and determine the time of making and breaking a circuit, through the two contacts in series, which is energized by a transformer 34 and includes an indicating lamp 36 and relay 35. The two-speed gear comprises wheels 14, 15, on the shaft 16, meshing with wheels 12, 13, freely rotatable on a shaft 5 geared to the motor 1, and selectively engagable by a clutch 11 slidablsy mounted on and driven by the shaft. Operating periods of 24 or 48 hours may be produced by the gears.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3329446A GB625141A (en) | 1946-11-08 | 1946-11-08 | Electric timing switches |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3329446A GB625141A (en) | 1946-11-08 | 1946-11-08 | Electric timing switches |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB625141A true GB625141A (en) | 1949-06-22 |
Family
ID=10351054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3329446A Expired GB625141A (en) | 1946-11-08 | 1946-11-08 | Electric timing switches |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB625141A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2433233A1 (en) * | 1978-08-12 | 1980-03-07 | Schwenk Kg Theben Werk | ELECTRICAL CLOCK PROGRAMMER WITH ANALOG DISPLAY |
| US5042311A (en) * | 1988-06-06 | 1991-08-27 | Eaton Corporation | Secondary timer for program timer |
-
1946
- 1946-11-08 GB GB3329446A patent/GB625141A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2433233A1 (en) * | 1978-08-12 | 1980-03-07 | Schwenk Kg Theben Werk | ELECTRICAL CLOCK PROGRAMMER WITH ANALOG DISPLAY |
| US5042311A (en) * | 1988-06-06 | 1991-08-27 | Eaton Corporation | Secondary timer for program timer |
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